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Gray/Portland, ME Local Forecast Office

14NM NE Portsmouth NH

Marine Point Forecast

[NOTICE]

This Afternoon
High: 60 °F
NE 10kt
< 1ft
Tonight
Low: 49 °F
Light Wind
< 1ft
Wednesday
High: 59 °F
ENE 15kt
< 1ft
Wednesday Night
Low: 49 °F
Light Wind
< 1ft
Thursday
High: 60 °F
NE 10kt
< 1ft
Thursday Night
Low: 52 °F
⇑NNE 10kt
< 1ft
Friday
High: 62 °F
⇑NNE 20kt
< 1ft
Friday Night
Low: 53 °F
NNE 20kt
< 1ft
Saturday
High: 62 °F
NNE 20kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:14 am EDT Sep 22, 2026
Forecast Valid: 12pm EDT Sep 22, 2026-6pm EDT Sep 28, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

NE wind 5 to 10 kt becoming E. Mostly sunny. Seas 1 ft or less.

Tonight

Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

Wednesday

ENE wind 10 to 15 kt, with gusts as high as 25 kt. Sunny. Seas 1 ft or less.

Wednesday Night

Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

Thursday

NE wind around 10 kt, with gusts as high as 20 kt. Sunny. Seas 1 ft or less.

Thursday Night

NNE wind 5 to 8 kt increasing to 7 to 10 kt after midnight. Mostly cloudy. Seas 1 ft or less.

Friday

NNE wind 15 to 18 kt increasing to 17 to 20 kt in the afternoon. Winds could gust as high as 30 kt. A chance of showers after 10am. Seas 1 ft or less.

Friday Night

NNE wind 15 to 20 kt, with gusts as high as 30 kt. Showers likely. Seas 1 ft or less.

Saturday

NNE wind around 20 kt, with gusts as high as 30 kt. Showers likely. Seas 1 ft or less.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.